Vehicle spring



Feb. 12, 1929. 1,702,008

D. H. JOHANNESEN VEHICLE SPRING Filed May 28, 1926 hue/iii Patented Feb, 12, 1929.

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DOUGLAS H. ionnnnnsnn, or onioneo, rumors.

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Application filed May 28, 1926. Serial No. 112,257.

This invention relates to vehicle springs, and has for its object the provision of a novel spring arrangement which will greatly improve the riding qualities of any vehicle to 5 which applied.

tended to limit the invention short ofits true spirit and scope, as defined in the appended claims.

In the accompanying drawing, a side view of a spring arrangement constructed in accordance with the invention is shown in Fig.

1', and a top view of the same is shown in Fig.2,

The spring arrangement illustrated comprises two springs which are adapted to extend in crossed relation between two vehicle parts, such as the chassis frame and the rear axle housing.

Each spring consists of a long lower spring member 10 which is pivoted at 11 to the lower vehicle part, a short upper spring member 12 which is shackled at 13 to the spring member 10 and is fixedly secured at 14 to the upper vehicle part, and a resiliently yieldable fulcruming member 15 which is carried by the upper vehicle part in engagement with the spring member 10 at 16.

i The spring members 10 and 12 are formed I up from a number of spring leaves 17, and

the leaves 17 are so graduated in lengthas to V render the spring member 10 increasingly flexible toward the pivotal connection 11 and the spring member 12 increasingly flexible toward the shackle connection 13.

The fulcruming member 15 is a roller which is rotatably mounted in a bracket '18. An-

other bracket 19 is fixedly secured to the up per vehicle part at a point directly above the bracket 18, and a number of coil springs 20 areinterposed between suitable guides on the brackets, serving to permit the bracket 18 which carries the roller 15 to yield resiliently toward the upper vehicle part. The roller 15 bears downwardly against a plate 21 which is fixedly secured to the spring member 10 near the shackle connection 13, and the bearing face of the plate 21is preferably disposed at an inclination to the horizontal, whereby to vary the distance between the upper vehicle part and the fulcruming point as the shackled end of the spring member 10 shifts away from the fulcruming point in operation.

The spring functions inthe following manner: When the rear axle housing is suddenly shifted upwardly-as when the traction wheels associated therewith encounter a raised place in the roadthe lower pivoted end of the spring member 10 will also move upwardly. The spring member 10 will be flexed to a certain extent by such upward movement, but will also act as a lever of the first class about the fulcruming point 16, and the upper shackled end of the spring member 10 will as a consequence move clownwardly against the yielding'resistance of the spring member 12. The fulcruming member 15 will also yield upwardly to a certain extent in unison with the'fiexing of the spring member 12 and the combined flexing and fulcruming oscillation of the spring member 10, provided that the upward movement of the rear axle housing is sufficiently sudden andextreme.

It will be understood, of course, "that the tendency of the chassis to shift laterally under the infiuenceof the spring members 10 and 12 of the spring when in operation is neutralized by the oppositely exerted influence of the corresponding spring members of the other spring, which is arranged in spaced parallel relation to thespring described and is connected to the chassis and rear axle hous ing'in the same manner but at opposite sides thereof. 0 i

I claim: V

1. A springarrangement for vehicles, comprising two interdependent spring devices which are intended to extend in crossed relation between two vehicle parts, each of said spring'devices consisting of one spring which is connected at one end to one vehicle part and bears intermediate its ends against a ful crum carried by the other vehicle part, and

another spring which is connected atone end to the last'mentioned vehicle part and at the other end to the otherwise free end of the first mentioned spring.

2. A spring arrangement tor vehicles, comprising two interdependent spring devices 0 against a fulcrum carried by the other vehicle part, and a relatively short spring portion which is connected at one end to the last mentioned vehicle part and at the other end portion; 7

:3. A spring arrangement for vehicles, comprising two interdependent spring devices which are intended to extend in crossed relation between two vehicle parts, each oisaid p which are intended to extend in crossed relaspring devices consisting of a long spring portion which is connected atone end to one veh cle part and bears intermediate 1ts ends against a fulcrunicarried bythe othervehicle part, and a relatively short spring portion 1. Which is connected at oneend to the-last men- 1 tio ned vehicle-part and at theotherend to the otherwise free endof the long spring portion,

the,long springportion being of increasing flexibility toward its point of connection with i the vehicle part, and the short spring portion Q being of increasing flexibilitytowarditspoint f6011neci3i011 with the longspring portion.

,A spring arrangementforvehicles, coni- -prising two; interdependent spring devices which are intended to extend in crossed rela.

' v-tion between two vehicle parts, each of said spring,deviceslconsisting of along spring member which is pivoted at one end tonne vehicle-part andis fulcrumed intermediate its ends relativeto the other vehicle part, and a ashortspring member which is fixedly attached at one end, to the last mentioned vehicle part and is loosely shackled at the other end-to :theotherwise' free; end of the long 7 spring member. 1 t v I V ,5. A. spring'arrangement tor vehicles, com-v prising ;two, interdependent spring devices which are intended to extend in crossed rela-..- tion between two Vehicle parts, each ofsaidthe;defiectiQnobtained in the springs at springd'evices consistingof along spring prisingr -two interdependent spring deviceswhich are intended to extend in crossed re1a-. tion between two vehicle parts, each of saidspring devices consisting of a long-spring 7 vehicle part, a short spring niemberwhich is connected at one 'end to the.1other lvehicle otherwise free end of the long spring mem member which is connected at one end to one vehicle part, a short spr ng member ,WlHC h is connecteduat onenend-to-the other vehicle part and. connected at the OtherendtO the otherwise free end of the long: spring memher, and a. springef ulcruming member which} ,is supported by the-last mentionedvehicle I part and'bears against the long spring memmber atan intermediatepoint.

6. A spring arrangementfor vehicles, commember which is connected at one end to one partfland is connectedatthe' other end to the her, and a 'spring fulcruming. member which to the otherwise free end of the long spring.

' t part'and bears against the long spring memfn-lcruming points, and a plurality of fixed cantilever springs connected therewith.

.iDGII-lbGlfWlllCll is connectedat one end to one vehicle part, a shortsprmg member which is connected at one end to the other vehicle part and isconnected at theiother end to the 0 otherwise free end of the long spring member, and a resiliently yieldable spring-fuh cruming member which is supported by the last mentioned vehicle part and bears against the long spring member at an intermediate point.

8. .A spring arrangement for vehicles, comprising a plurality of fulcnumed. cantilever springs present ng mchned; surfaces at the 9. A spring arrangementfor vehicles, com prising a plurallty of fulcrumed cantllever springs having'wedge shapedmembers-con i nected therewith at the. ,fulcrumingpoints, 8o 1 and a plurality of fixed cantilever springs connected therewith. o

10. A spring arrangement for. vehicles,

. comprising two interdependent spring de-.

vices which are intended toextend in crossed '90 ,relation. between two vehicle parts, each of.

saidfspring. devices being; fulcrumed inter mediate its ends andbeing so constructed'that pointsintermediatethe ends thereof will be approximately as great as the deflection. obtaine'd-at one end and more than that obtained atathe otherendv A 1 W 11 .-'The combination-with the chassis, and the rear axle housing of a motor vehicle, of

twointerdependent spring devices extending in crossed relation between the sides of the chassis andtheends of vtheaxle housing, each of said spring devices consisting of one spring which lSzCOIlIlQCtBCl at one end toone end of theaxle housing and bearsvlntermedlate lts ends against aiulcrum carriedby the'chassis,

and another-spring which is connected atone end to the opposite side 2 of .the chassis. and

at the other endto the -.otherwise freeend'of the first mentionedspring. V

.Intestimony whereof Ihave hereunto subscribed my name.

@DOUGLASEIJ:d'OHAlSTNESEN. j 

